<!--
 * @Descripttion: 表单表格
 * @version: 1.3
 * @Author: sakuya
 * @Date: 2023年2月9日12:32:26
 * @LastEditors: Xujianchen
 * @LastEditTime: 2023-03-18 13:08:27
-->

<template>
	<div ref="scFormTable" class="sc-form-table">
		<el-table ref="table" :data="data" border stripe>
			<el-table-column type="index" width="50" fixed="left">
				<template #header>
					<el-button v-if="!hideAdd" type="primary" icon="el-icon-plus" size="small" circle @click="rowAdd"></el-button>
				</template>
				<template #default="scope">
					<div :class="['sc-form-table-handle', { 'sc-form-table-handle-delete': !hideDelete }]">
						<span>{{ scope.$index + 1 }}</span>
						<el-button
							v-if="!hideDelete"
							type="danger"
							icon="el-icon-delete"
							size="small"
							plain
							circle
							@click="rowDel(scope.row, scope.$index)"
						></el-button>
					</div>
				</template>
			</el-table-column>
			<el-table-column v-if="dragSort" label="" width="50">
				<template #default>
					<div class="move" style="cursor: move"><el-icon-d-caret style="width: 1em; height: 1em" /></div>
				</template>
			</el-table-column>
			<slot></slot>
			<template #empty>
				{{ placeholder }}
			</template>
		</el-table>
	</div>
</template>

<script>
import Sortable from 'sortablejs'

export default {
	props: {
		modelValue: { type: Array, default: () => [] },
		addTemplate: { type: Object, default: () => {} },
		placeholder: { type: String, default: '暂无数据' },
		dragSort: { type: Boolean, default: false },
		hideAdd: { type: Boolean, default: false },
		hideDelete: { type: Boolean, default: false }
	},
	data() {
		return {
			data: []
		}
	},
	mounted() {
		this.data = this.modelValue
		if (this.dragSort) {
			this.rowDrop()
		}
	},
	watch: {
		modelValue() {
			this.data = this.modelValue
		},
		data: {
			handler() {
				this.$emit('update:modelValue', this.data)
			},
			deep: true
		}
	},
	methods: {
		rowDrop() {
			const _this = this
			const tbody = this.$refs.table.$el.querySelector('.el-table__body-wrapper tbody')
			Sortable.create(tbody, {
				handle: '.move',
				animation: 300,
				ghostClass: 'ghost',
				onEnd({ newIndex, oldIndex }) {
					_this.data.splice(newIndex, 0, _this.data.splice(oldIndex, 1)[0])
					const newArray = _this.data.slice(0)
					const tmpHeight = _this.$refs.scFormTable.offsetHeight
					_this.$refs.scFormTable.style.setProperty('height', tmpHeight + 'px')
					_this.data = []
					_this.$nextTick(() => {
						_this.data = newArray
						_this.$nextTick(() => {
							_this.$refs.scFormTable.style.removeProperty('height')
						})
					})
				}
			})
		},
		rowAdd() {
			const temp = JSON.parse(JSON.stringify(this.addTemplate))
			this.data.push(temp)
		},
		rowDel(row, index) {
			this.data.splice(index, 1)
		},
		//插入行
		pushRow(row) {
			const temp = row || JSON.parse(JSON.stringify(this.addTemplate))
			this.data.push(temp)
		},
		//根据index删除
		deleteRow(index) {
			this.data.splice(index, 1)
		}
	}
}
</script>

<style scoped>
.sc-form-table {
	width: 100%;
}
.sc-form-table .sc-form-table-handle {
	text-align: center;
}
.sc-form-table .sc-form-table-handle span {
	display: inline-block;
}
.sc-form-table .sc-form-table-handle button {
	display: none;
}
.sc-form-table .hover-row .sc-form-table-handle-delete span {
	display: none;
}
.sc-form-table .hover-row .sc-form-table-handle-delete button {
	display: inline-block;
}
.sc-form-table .move {
	text-align: center;
	font-size: 14px;
	margin-top: 3px;
}
</style>
